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公开(公告)号：US20230139996A1
公开(公告)日：2023-05-04
申请号：US18050264
申请日：2022-10-27
发明人： Hideaki YAGYU
摘要： An excimer lamp includes light-emitting gases containing krypton gas and chlorine gas in a sealing body composed of fused quartz glass having an absorption band at least in a wavelength band of 240 nm to 260 nm. An ultraviolet light irradiation device includes: an excimer lamp having light-emitting gases containing krypton gas and chlorine gas in a sealing body; a housing having an extraction part for extracting ultraviolet light emitted from an excimer lamp; and fused quartz glass disposed in the extraction part and having an absorption band at least in a wavelength band of 240 nm to 260 nm.
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公开(公告)号：US20220359186A1
公开(公告)日：2022-11-10
申请号：US17619927
申请日：2020-08-05
发明人： Hideaki YAGYU
摘要： Provided is an ultraviolet irradiation device including an excimer lamp, a main emission wavelength of which belongs to a wavelength band of 190-230 nm (first wavelength band), the ultraviolet irradiation device that shows high startability. This ultraviolet irradiation device includes: a lamp house on at least one surface of which a light extraction surface is formed; an excimer lamp accommodated in the lamp house, the excimer lamp that emits ultraviolet light, a main emission wavelength of which belongs to a first wavelength band of 190-230 nm; and a start assist light source arranged in a position in which ultraviolet light, a main emission wavelength of which belongs to a second wavelength band of 250-300 nm, is capable of being irradiated to the excimer lamp.
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公开(公告)号：US20240123103A1
公开(公告)日：2024-04-18
申请号：US18555379
申请日：2022-03-31
发明人： Akihiro KUNO , Hideaki YAGYU , Shigeki FUJISAWA
CPC分类号： A61L2/10 , A61L2/26 , A61L2202/11
摘要： To provide an ultraviolet light irradiation device capable of inactivating bacteria, viruses, and the like with increased efficiency while ensuring safety. An ultraviolet light irradiation device according to the present invention includes a light source to emit ultraviolet light having a wavelength within a range of 190 nm or more and less than 240 nm, a housing to house the light source, a light extraction part to extract the ultraviolet light emitted from the light source out of the housing, and a diffusion transmission member to diffuse and transmit the ultraviolet light.
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公开(公告)号：US20220059336A1
公开(公告)日：2022-02-24
申请号：US17399647
申请日：2021-08-11
发明人： Hideaki YAGYU
摘要： To improve startability in a UV irradiation apparatus equipped with excimer lamps. The UV irradiation apparatus includes a plurality of excimer lamps each having a light-emitting tube filled with a discharge gas containing a noble gas. The plurality of excimer lamps includes a first excimer lamp filled with the discharge gas at a first enclosed gas pressure and a second excimer lamp filled with the discharge gas at a second enclosed gas pressure lower than the first enclosed gas pressure. The first excimer lamp is placed in a position such that at least part of light emitted from the second excimer lamp is allowed to enter the first excimer lamp.
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公开(公告)号：US20230293743A1
公开(公告)日：2023-09-21
申请号：US18055187
申请日：2022-11-14
发明人： Hideaki YAGYU
CPC分类号： A61L2/10 , A61L2/26 , A61L2202/11
摘要： An inactivating device includes: an ultraviolet light source to emit ultraviolet light, a main light-emission wavelength band of the ultraviolet light being at least partly included in a range from 200 nm to 230 nm inclusive; and an optical filter including a multilayer dielectric film, wherein with respect to the ultraviolet light incident at an incidence angle of 0 degrees, the optical filter has a band in which the ultraviolet light in a range of wavelengths from 190 nm to 235 nm inclusive is transmitted, and a wavelength λ5 at which transmittance of the optical filter indicates 5% is longer than or equal to 236 nm and shorter than 245 nm.
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公开(公告)号：US20220068626A1
公开(公告)日：2022-03-03
申请号：US17404046
申请日：2021-08-17
发明人： Hideaki YAGYU
摘要： An excimer lamp is such that that an interior of a discharge vessel is filled with a first gas including krypton (Kr) or xenon (Xe); a second gas including chlorine (Cl) or bromine (Br); and a third gas which is at least one species selected from among the group consisting of argon (Ar), neon (Ne), and helium (He), and which exhibits a partial pressure Pb that is not less than a partial pressure Plg of the first gas.
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公开(公告)号：US20210335593A1
公开(公告)日：2021-10-28
申请号：US17312589
申请日：2019-12-05
发明人： Shinji TANIGUCHI , Hideaki YAGYU , Manabu MORI
摘要： A ultraviolet irradiation apparatus includes: a first electrode block and a second electrode block located apart from each other in a first direction or located in an electrically-insulated state in the first direction; a recessed groove formed on a side surface of each of both the blocks; a first discharge lamp partially fitted into the recessed grooves formed in both the blocks and located across the both blocks; a power supply part for supplying electrical power to the first discharge lamp; a first current-carrying member electrically connecting the first electrode block and the power supply part; a second current-carrying member capable of electrically connecting the second electrode block and the power supply part at an electrical potential different from that of the first current-carrying member; and a light irradiation window for extracting ultraviolet light emitted from the first discharge lamp to outside.
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公开(公告)号：US20240203725A1
公开(公告)日：2024-06-20
申请号：US18555367
申请日：2022-04-15
发明人： Akihiro KUNO , Hideaki YAGYU , Shigeki FUJISAWA
摘要： The startability of an ultraviolet ray generation device including an excimer lamp as an ultraviolet light source is to be improved. An ultraviolet ray generation device includes: an excimer lamp having a discharge container in which a discharge gas is sealed; a first electrode body and a second electrode body that are disposed so as not to be exposed to the discharge gas; and a first conductor electrically connected to one of the first electrode body and the second electrode body. The first conductor faces the other electrode body or a second conductor electrically connected to the other electrode body, through a dielectric member. The first conductor causes an atmospheric discharge around the first conductor.
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公开(公告)号：US20230310676A1
公开(公告)日：2023-10-05
申请号：US18189410
申请日：2023-03-24
发明人： Hideaki YAGYU
CPC分类号： A61L2/10 , G02B5/208 , A61L2202/11
摘要： An ultraviolet irradiation device includes a light source that emits light showing light intensity in a first wavelength band of 200 nm to 235 nm and a second wavelength band of 240 nm to 280 nm; an optical filter that suppresses the light intensity in the second wavelength band and has transmittance characteristics according to an incident angle of the light emitted from the light source. A first/second angular distribution of light is obtained from a spectrum for each light distribution angle of the light emitted from the optical filter. The first angular distribution of light has a first angle of a light beam showing maximum intensity, the first angle substantially matching with a second angle of a light beam showing maximum intensity in the second angular distribution of light.
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公开(公告)号：US20220285145A1
公开(公告)日：2022-09-08
申请号：US17664511
申请日：2022-05-23
发明人： Hideaki YAGYU , Atsushi IMAMURA , Manabu MORI
摘要： A device for emitting ultraviolet light includes at least one excimer lamp and a housing for the excimer lamp(s). Each excimer lamp has a discharge vessel filled with light-emitting gases, and a pair of first and second electrodes that are placed in contact with the discharge vessel and produce a dielectric barrier discharge inside the discharge vessel. The housing is made of an insulating and heat-resistant resin material. The housing is configured to house the excimer lamp(s), and has a light-emitting window that allows light with a center wavelength in a range from 200 nm to 230 nm emitted from the excimer lamp(s) to exit from the housing.
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